Jimmy Fallon Opens His 1st ‘Tonight Show’ With a Very Gracious Explanation of What We Can Expect.

Jimmy Fallon opened his first "Tonight Show" by saying, quote, "I'm Jimmy Fallon and I'll be your host . . . for now."

After Jimmy took the stage as the new host of 'The Tonight Show Starring Jimmy Fallon' for the first time, he took a moment to welcome new viewers and thank some key folks who helped him get to where he is.